*{
    margin: 0;
    padding: 0;
}
body{
    max-width:1536px;
    min-width:395px;
    background-color: rgb(250, 250, 250);
}
img{
    vertical-align: bottom;
}
ul li{
    list-style: none;
}
a{  
    font-size: 12px;
    text-decoration: none;
}
.w{
    width: 1226px;
    margin: 0 auto;
}
/* 顶部图片 */
.firstImg{

    width:100%;
    height: 120px;
    background: url("../images/ia_100000398.jpg") no-repeat;
    background-position: 50%;
    /* background-size: cover; */
    background-size: auto 120px;

    
}
/* 顶部导航栏 */
header{
   height: 40px;
   background:#333 ; 
}
header .w{
    height: 40px;
    background-color: #333;
}
header .w a{
    float: left;
    color: #b0b0b0;
    line-height: 40px;
    display: inline-block;
    margin-right: 10px;
    font-size: 12px;
  }
  header .w a:hover{
      color: #fff;
  }
.headerNavr{
    position: relative;
    float: right;
}
.headerNavr a:last-child{
    margin-left: 20px;
}

.headerNavr a:last-child::before{
  content: "";
  width: 20px;
  height: 20px;
  background: url(../images/ia_100000394.png) no-repeat ;
  background-size: contain;
  position: absolute;
  margin:9px 5px 0px 0px;
 right:43px;
}

/* 底部 */
.foot{
    float: left;
    width: 100%;
    background-color: #fff;
}
.foot .w{
    height: 90.8px;
}
.centre  ul{
    width: 100%;
    height:100px;
    margin: 0 auto;
    border-bottom: 1px solid #e0dddd;
}
.centre  ul li{
float: left;
width: 17%;
text-align: center;
}
.centre  ul li i{
    font-size: 20px;
}
.centre  ul li a:hover{
    color: #ff6700;
}
.centre-list ul{
float: left;
width: 180px;
height: 300px;

}

.centre-list ul li{
margin: 0;
height: 35px;
color: rgb(84, 85, 87);
}
.centre-list ul li:first-child{
    line-height: 40px;
    margin-bottom: 15px;
    font-size: 17px;
    font-weight: 600;
}
.centre-list ul li:nth-child(n+2):hover{
    color: #ff6700;
    cursor: pointer;
}
.footright{
    float: right;
    margin-top: -300px;
}
.endimg{
    margin-left: 50%;
    transform: translateX(-50%);
}